| Internacional de Hungría | 2022/11/03 13:20 | Harry Huang v Joel Koenig | L | 2-0 |
| Open de Croacia | 2022/06/21 14:55 | Joel Koenig v Cholan Kayan | L | 0-2 |
| Bonn Int. | 2022/06/16 11:10 | Joel Koenig v Cholan Kayan | L | 0-2 |
| Open de Austria | 2022/05/28 08:40 | Niluka Karunaratne v Joel Koenig | L | 2-0 |
| Open de Austria | 2022/05/27 15:00 | Karan Rajan Rajarajan v Joel Koenig | W | 0-1 |
| Slovenia Int. | 2022/05/19 11:30 | Enogat Roy v Joel Koenig | L | 2-0 |
| Open de Luxemburgo | 2022/05/06 09:40 | Joel Koenig v Magnus Johannesen | L | 0-2 |
| Holanda - Internacional | 2022/04/14 09:20 | Axel Henrik Parkhøi v Joel Koenig | L | 2-1 |